Change default IP address to 127.0.0.1

[waldekmastykarz]

Right now, we use 0.0.0.0 as the default IP address. Unfortunately, it leads to several issues on macOS, where it blocks updating the MS Graph DB, and also fails intercepting some requests. Using 127.0.0.1 instead solves these issues and seems to be working correctly on both Windows and macOS. We should change the default IP address from 0.0.0.0 to 127.0.0.1. If needed, uses can still change the IP address to 0.0.0.0 (or other) using the --ip-address arg.